<template>
  <view>
    <!-- 1. 头部搜索框 -->
    <ugo-search />
    <!-- 2. tabs 选项卡 -->
    <u-tabs :list="tabList" lineColor="#EB4450" :scrollable="false"></u-tabs>
    <!-- 3. 商品列表 -->
    <view class="goods-list">
      <!-- 商品列表渲染 -->
      <navigator class="goods-item" v-for="item in goodsList" :key="item.goods_id" 
        :url="`/goodsPackage/goods_detail/index?goods_id=${item.goods_id}`">
        <image  lazy-load :src="item.goods_small_logo || defaultSrc" class="goods-image" mode="aspectFit"  />
        <!-- 商品信息 -->
        <view class="goods-info">
          <view class="goods-name">{{item.goods_name }}</view>
          <view class="goods-price">{{item.price_price }}</view>
        </view>
      </navigator>
    </view>
    <!-- 底部提示 -->
    <view class="tips" v-if="total || total === goodsList.length">我也是有底线的~</view>
  </view>
</template>

<script>
export default {
  data() {
    return {
      tabList: [{ name: "综合" }, { name: "销量" }, { name: "价格" }],
      queryParams: {},
      goodsList: [],
      total: 0,
      defaultSrc: 'https://res.wx.qq.com/wxdoc/dist/assets/img/0.4cb08bb4.jpg'
    }
  },
  onLoad(options) {
    // console.log(options);
    this.queryParams = {
        ...options,
        pagenum: 1,
        pagesize: 20
    }
    this.getGoodsList()
  },
  // 触底钩子事件
  onReachBottom(){
    console.log(11);
    // 判断有没有下一页数据
    if(this.goodsList.length < this.total){
       // 页面+1
      this.queryParams.pagenum++;
      // 重新请求下一页数据
      this.getGoodsList()
    }else{
        uni.showToast({
            title: '没有更多数据了',
            icon: 'none'
        })
    }
  },
  // 下拉刷新
  async onPullDownRefresh(){
    // 重置数据
    this.queryParams.pagenum = 1
    this.goodsList = []
    this.total = 0
    // 重新发请求
    await this.getGoodsList()
    uni.stopPullDownRefresh()
  },
  methods:{
    async getGoodsList(){
        const res = await uni.$u.http.get('/goods/search', {
            params: this.queryParams
        })
        // console.log(res);
        // this.goodsList = [...this.goodsList,...res.data.message.goods];
        this.goodsList.push(...res.data.message.goods);
        this.total = res.data.message.total
    }
  }
};
</script>

<style lang="scss">
.goods-list {
  .goods-item {
    display: flex;
    border-bottom: 1rpx solid #ddd;
    padding: 25rpx;
    .goods-image {
      width: 190rpx;
      height: 190rpx;
    }
    .goods-info {
      flex: 1;
      font-size: 24rpx;
      /* 垂直方向两端对齐 */
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      padding: 20rpx;
      .goods-name {
        /* 多行超出隐藏 */
        overflow: hidden;
        -webkit-line-clamp: 2;
        text-overflow: ellipsis;
        display: -webkit-box;
        -webkit-box-orient: vertical;
      }
      .goods-price {
        color: #eb4450;
        /* 前面的价格符号 */
        &::before {
          content: "￥";
          font-size: 80%;
          margin-right: 5rpx;
        }
      }
    }
  }
}

.tips {
  line-height: 80rpx;
  text-align: center;
  color: #999;
  font-size: 24rpx;
}
</style>